C++ (Cpp) swri_audio_convert_init_x86 Examples

Example #1

AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt,
                                       enum AVSampleFormat in_fmt,
                                       int channels, const int *ch_map,
                                       int flags)
{
    AudioConvert *ctx;
    conv_func_type *f = fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt) + AV_SAMPLE_FMT_NB*av_get_packed_sample_fmt(in_fmt)];

    if (!f)
        return NULL;
    ctx = av_mallocz(sizeof(*ctx));
    if (!ctx)
        return NULL;
    ctx->channels = channels;
    ctx->conv_f   = f;
    ctx->ch_map   = ch_map;
    if (in_fmt == AV_SAMPLE_FMT_U8)
        memset(ctx->silence, 0x80, sizeof(ctx->silence));

    if(out_fmt == in_fmt && !ch_map)
        ctx->simd_f = cpy;

    if(HAVE_YASM && HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);

    return ctx;
}

Example #2

File: audioconvert.c Project: markjreed/vice-emu

AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt,
                                       enum AVSampleFormat in_fmt,
                                       int channels, const int *ch_map,
                                       int flags)
{
    AudioConvert *ctx;
    conv_func_type *f = fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt) + AV_SAMPLE_FMT_NB*av_get_packed_sample_fmt(in_fmt)];

    if (!f)
        return NULL;
    ctx = av_mallocz(sizeof(*ctx));
    if (!ctx)
        return NULL;

    if(channels == 1){
         in_fmt = av_get_planar_sample_fmt( in_fmt);
        out_fmt = av_get_planar_sample_fmt(out_fmt);
    }

    ctx->channels = channels;
    ctx->conv_f   = f;
    ctx->ch_map   = ch_map;
    if (in_fmt == AV_SAMPLE_FMT_U8 || in_fmt == AV_SAMPLE_FMT_U8P)
        memset(ctx->silence, 0x80, sizeof(ctx->silence));

    if(out_fmt == in_fmt && !ch_map) {
        switch(av_get_bytes_per_sample(in_fmt)){
            case 1:ctx->simd_f = cpy1; break;
            case 2:ctx->simd_f = cpy2; break;
            case 4:ctx->simd_f = cpy4; break;
            case 8:ctx->simd_f = cpy8; break;
        }
    }

#if (HAVE_YASM == 1) && (HAVE_MMX == 1)
    if(HAVE_YASM && HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);
#endif
#if (ARCH_ARM == 1)
    if(ARCH_ARM)              swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);
#endif
#if (ARCH_AARCH64 == 1)
    if(ARCH_AARCH64)          swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);
#endif

    return ctx;
}